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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $11,000 | 77,900 | 77,900 |
| 2006 | $36,000 | 109,700 | 109,700 |
| 2007 | $13,000 | 54,100 | 54,100 |
| 2008 | $25,000 | 143,500 | 143,500 |
| 2009 | $18,000 | 29,000 | 29,000 |
| 2010 | $25,000 | 31,000 | 31,000 |
| 2011 | $36,000 | 42,900 | 42,900 |
Note: Quantity represents Weight in kilograms
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